There is more than one artist with this name: 1. A pop/dance group from Florida, United States 2. A thrash metal band from California, United States 1) No Mercy is a pop and dance music group formed by three guys, Milli Vanilli mastermind Frank Farian in Florida in 1995, consisting of twin brothers Ariel and Gabriel Hernández, from Miami, Florida, and Marty Cintron III from New York. In 1996, No Mercy released their debut album titled My Promise (it was self-titled in the U.